<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
<style>
    .n1 {
        border-top: 4px solid hsl(32, 100%, 54%);
        border-bottom: 1px solid gray;
    }
    .n1 a{
        display: inline-block;
        width: 100px;
        height: 50px;
        text-align:center;
        line-height: 50px;
    }
    .n1 a{
        text-decoration: none;
        color: #272727;
    }
    .n1 a:hover{
        background-color: hsl(210, 5%, 85%);
        color: rgb(255, 114, 20);
    }
</style>
<body>
    <div class="n1">
        <a href="#">新浪导航</a >
        <a href="#">新浪导航</a >
        <a href="#">新浪导航</a >
        <a href="#">新浪导航</a >
    </div>
</body>
</html>